Routing Table Report 04:00 +10GMT Tue 27 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 404020
Prefixes after maximum aggregation: 171335
Deaggregation factor: 2.36
Unique aggregates announced to Internet: 195551
Total ASes present in the Internet Routing Table: 40466
Prefixes per ASN: 9.98
Origin-only ASes present in the Internet Routing Table: 32903
Origin ASes announcing only one prefix: 15457
Transit ASes present in the Internet Routing Table: 5435
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 32
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 478
Unregistered ASNs in the Routing Table: 235
Number of 32-bit ASNs allocated by the RIRs: 2332
Number of 32-bit ASNs visible in the Routing Table: 2128
Prefixes from 32-bit ASNs in the Routing Table: 5206
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 925
Number of addresses announced to Internet: 2527734408
Equivalent to 150 /8s, 170 /16s and 42 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 172473
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 98585
Total APNIC prefixes after maximum aggregation: 32028
APNIC Deaggregation factor: 3.08
Prefixes being announced from the APNIC address blocks: 94992
Unique aggregates announced from the APNIC address blocks: 39449
APNIC Region origin ASes present in the Internet Routing Table: 4674
APNIC Prefixes per ASN: 20.32
APNIC Region origin ASes announcing only one prefix: 1232
APNIC Region transit ASes present in the Internet Routing Table: 730
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 169
Number of APNIC addresses announced to Internet: 641253984
Equivalent to 38 /8s, 56 /16s and 194 /24s
Percentage of available APNIC address space announced: 81.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 150420
Total ARIN prefixes after maximum aggregation: 75798
ARIN Deaggregation factor: 1.98
Prefixes being announced from the ARIN address blocks: 121731
Unique aggregates announced from the ARIN address blocks: 49888
ARIN Region origin ASes present in the Internet Routing Table: 14931
ARIN Prefixes per ASN: 8.15
ARIN Region origin ASes announcing only one prefix: 5679
ARIN Region transit ASes present in the Internet Routing Table: 1574
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805012992
Equivalent to 47 /8s, 251 /16s and 134 /24s
Percentage of available ARIN address space announced: 64.0
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 101632
Total RIPE prefixes after maximum aggregation: 53099
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92983
Unique aggregates announced from the RIPE address blocks: 57142
RIPE Region origin ASes present in the Internet Routing Table: 16343
RIPE Prefixes per ASN: 5.69
RIPE Region origin ASes announcing only one prefix: 7954
RIPE Region transit ASes present in the Internet Routing Table: 2638
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 32
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1447
Number of RIPE addresses announced to Internet: 502254600
Equivalent to 29 /8s, 239 /16s and 204 /24s
Percentage of available RIPE address space announced: 80.9
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 39020
Total LACNIC prefixes after maximum aggregation: 8085
LACNIC Deaggregation factor: 4.83
Prefixes being announced from the LACNIC address blocks: 38806
Unique aggregates announced from the LACNIC address blocks: 19762
LACNIC Region origin ASes present in the Internet Routing Table: 1572
LACNIC Prefixes per ASN: 24.69
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 293
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 21
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 492
Number of LACNIC addresses announced to Internet: 98581376
Equivalent to 5 /8s, 224 /16s and 59 /24s
Percentage of available LACNIC address space announced: 65.3
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8833
Total AfriNIC prefixes after maximum aggregation: 2118
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6888
Unique aggregates announced from the AfriNIC address blocks: 2203
AfriNIC Region origin ASes present in the Internet Routing Table: 520
AfriNIC Prefixes per ASN: 13.25
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 31498496
Equivalent to 1 /8s, 224 /16s and 161 /24s
Percentage of available AfriNIC address space announced: 46.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2490 11109 991 Korea Telecom (KIX)
17974 1771 503 61 PT TELEKOMUNIKASI INDONESIA
7545 1658 303 89 TPG Internet Pty Ltd
4755 1573 386 160 TATA Communications formerly
9583 1238 95 540 Sify Limited
9829 1208 1025 29 BSNL National Internet Backbo
7552 1169 1062 11 Vietel Corporation
4808 1097 2048 314 CNCGROUP IP network: China169
24560 1015 384 166 Bharti Airtel Ltd., Telemedia
18101 948 130 160 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3380 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2974 1060 385 Time Warner Telecom
18566 2093 383 179 Covad Communications
1785 1858 680 126 PaeTec Communications, Inc.
20115 1634 1559 626 Charter Communications
22773 1547 2910 111 Cox Communications, Inc.
30036 1405 254 741 Mediacom Communications Corp
7018 1282 9776 835 AT&T WorldNet Services
11492 1166 212 410 Cable One
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1823 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1034 2247 55 LDCOM NETWORKS
31148 672 37 9 FreeNet ISP
34984 666 188 174 BILISIM TELEKOM
12479 646 654 56 Uni2 Autonomous System
6830 641 1943 412 UPC Distribution Services
20940 634 203 488 Akamai Technologies European
8551 577 360 81 Bezeq International
3320 532 8442 398 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1807 329 130 TVCABLE BOGOTA
28573 1725 1099 60 NET Servicos de Comunicao S.A
8151 1371 3017 354 UniNet S.A. de C.V.
7303 1351 826 190 Telecom Argentina Stet-France
26615 901 684 29 Tim Brasil S.A.
27947 670 69 111 Telconet S.A
11172 635 91 72 Servicios Alestra S.A de C.V
22047 584 326 15 VTR PUNTO NET S.A.
3816 562 239 96 Empresa Nacional de Telecomun
6503 556 418 65 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1266 958 13 TEDATA
24863 845 274 37 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 164 664 82 MTN Network Solutions
36923 157 20 4 Swift Networks Limited
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
7029 3380 990 155 Windstream Communications Inc
6389 3371 3807 196 bellsouth.net, inc.
4323 2974 1060 385 Time Warner Telecom
4766 2490 11109 991 Korea Telecom (KIX)
18566 2093 383 179 Covad Communications
1785 1858 680 126 PaeTec Communications, Inc.
8402 1823 544 16 Corbina telecom
10620 1807 329 130 TVCABLE BOGOTA
17974 1771 503 61 PT TELEKOMUNIKASI INDONESIA
28573 1725 1099 60 NET Servicos de Comunicao S.A
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 3371 3175 bellsouth.net, inc.
4323 2974 2589 Time Warner Telecom
18566 2093 1914 Covad Communications
8402 1823 1807 Corbina telecom
1785 1858 1732 PaeTec Communications, Inc.
17974 1771 1710 PT TELEKOMUNIKASI INDONESIA
10620 1807 1677 TVCABLE BOGOTA
28573 1725 1665 NET Servicos de Comunicao S.A
7545 1658 1569 TPG Internet Pty Ltd
4766 2490 1499 Korea Telecom (KIX)
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:28 /11:81 /12:234
/13:458 /14:824 /15:1476 /16:12183 /17:6245 /18:10432
/19:20539 /20:28689 /21:29633 /22:40174 /23:37523 /24:211946
/25:1222 /26:1463 /27:798 /28:14 /29:7 /30:5
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3040 3380 Windstream Communications Inc
6389 2088 3371 bellsouth.net, inc.
18566 2042 2093 Covad Communications
4323 1805 2974 Time Warner Telecom
8402 1800 1823 Corbina telecom
10620 1704 1807 TVCABLE BOGOTA
30036 1353 1405 Mediacom Communications Corp
11492 1129 1166 Cable One
8452 1076 1266 TEDATA
1785 1060 1858 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:533 2:761 4:14 6:3 8:391 12:1971
13:1 14:602 15:12 16:3 17:7 20:8
23:152 24:1738 27:1253 31:941 32:58 33:2
34:2 36:8 37:291 38:781 40:120 41:2982
42:130 44:3 46:1454 47:3 49:342 50:640
52:13 54:6 55:10 56:3 57:32 58:959
59:478 60:278 61:1203 62:1005 63:1996 64:4349
65:2275 66:4834 67:2015 68:1146 69:3187 70:902
71:440 72:1807 74:2703 75:491 76:320 77:967
78:987 79:502 80:1232 81:907 82:659 83:553
84:613 85:1191 86:729 87:915 88:343 89:1617
90:297 91:4635 92:519 93:1536 94:1456 95:1161
96:372 97:385 98:832 99:37 100:5 101:156
103:919 106:64 107:178 108:210 109:1550 110:754
111:902 112:445 113:564 114:627 115:768 116:907
117:724 118:905 119:1206 120:337 121:695 122:1661
123:1097 124:1364 125:1260 128:556 129:190 130:261
131:595 132:173 133:21 134:243 135:63 136:211
137:194 138:351 139:145 140:494 141:241 142:388
143:401 144:500 145:69 146:491 147:244 148:719
149:297 150:157 151:176 152:459 153:171 154:7
155:427 156:213 157:380 158:166 159:524 160:326
161:249 162:343 163:188 164:547 165:392 166:560
167:463 168:858 169:148 170:845 171:124 172:2
173:1835 174:727 175:434 176:462 177:602 178:1296
180:1147 181:73 182:757 183:276 184:441 185:1
186:2147 187:867 188:1158 189:1190 190:5522 192:5995
193:5591 194:4616 195:3641 196:1288 197:176 198:3619
199:4478 200:5761 201:1658 202:8460 203:8589 204:4345
205:2465 206:2800 207:2831 208:4051 209:3689 210:2761
211:1466 212:1946 213:1906 214:875 215:108 216:5090
217:1527 218:539 219:332 220:1231 221:551 222:325
223:328
End of report
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